“Senior Palantir employees” then worked on the Facebook profile data that was acquired by Cambridge Analytica, Wylie claimed.

“That was not an official contract between Palantir and Cambridge Analytica, but there were Palantir staff that would come into the office and work on that data,” Wylie told lawmakers. He added that Palantir staff “helped build the models we were working on.”

Wylie did not elaborate on the “models” being worked on but it relates to Cambridge Analytica’s algorithms used to target people in political votes.

A spokesperson for Palantir told CNBC the company has never had a relationship with Cambridge Analytica and has never worked on any Cambridge Analytica data. Cambridge Analytica was not immediately available for comment.

Last year, The Observer newspaper reported that Cambridge Analytica and Palantir had meetings in 2013. According to the report, at least one senior Palantir employee consulted with Cambridge Analytica regarding a project in Trinidad and political work in the United States. Palantir decided against it, according to the British newspaper.